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5464-937 - NetCon Dual Overspeed Module is available in stock which ships the same day.
5464-937 - NetCon Dual Overspeed Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5464-937
Manufacturer: Woodward
Control System Series: NetCon 5000 / MicroNet Transition Systems
Product Type: NetCon Dual Overspeed Module
Signal Track Compatibility: Variable Reluctance Magnetic Pickups (MPUs) / Proximity Probes
Channel Configuration: 2 Isolated Independent Speed Processing Channels
Logic Response Time: Under 10 milliseconds
Input Frequency Threshold: Up to 25,000 Hz
Form Factor Layout: Custom VME-Style Plug-In Circuit Board Assembly
Operating Temperature Limits: -20°C to +65°C (-4°F to +149°F)
Relative Humidity Threshold: 95% Non-condensing
Repair Time: 3-5 Days
Availability: In Stock
Weight: 1.15 kg (2.54 lbs)
Country of Origin: United States
The Woodward 5464-937 is a Dual-channel NetCon Dual Overspeed Module specifically designed to serve as a hardware-level safety guard in large industrial turbine systems. Housed in the VME-based chassis, this card bypasses standard, slower software processing loops to deliver standalone, hardwired overspeed detection. Its fundamental role is to track rotation telemetry on prime movers and immediately execute emergency trip actions if a runaway shaft event occurs.
DUAL-CHANNEL SPEED ISOLATION INTERFACE
The 5464-937 features two completely isolated, separate onboard frequency measurement tracks. Each channel interfaces with its own dedicated magnetic pickup sensor (MPU) or proximity sensor positioned on the turbine gear shaft. The raw analog sine waves are captured, routed through local differential noise-canceling filters, and converted to digital pulse patterns. Because the channels maintain separate electrical pathways, a physical wire break or a component fault on one MPU sensor input cannot cascade or incapacitate the adjacent safety-tracking line.
CRITICAL HARDWARE TRIP AND LOGIC VOTING
Once the frequency inputs are converted, the onboard high-speed comparator circuits match the live velocity counts against physical, hardcoded hardware limits. If the turbine's rotational speed accelerates past the safety threshold, the 5464-937 overrides the core application software. It fires built-in, low-latency electronic trip drivers to drop the system's emergency safety relays, which cuts fuel supply lines instantly to force a complete mechanical shutdown before overspeed damage occurs.
WHY PARTNER WITH WORLD OF CONTROLS
World of Controls bridges the gap for plant managers running legacy infrastructure with our extensive inventory of obsolete and hard-to-find Woodward components. Every certified 5464-937 module undergoes rigorous multi-point logic verification on our customized NetCon and MicroNet simulation testbeds. We inspect signal trace integrity, stress-test high-frequency inputs up to maximum tolerances, and confirm output trip latching speeds. WOC supplies these boards in both UNUSED and REBUILT profiles to keep your industrial systems active.
What is the Woodward 5464-937?
The 5464-937 is a high-speed NetCon Dual Overspeed Module designed to provide autonomous, hardware-based overspeed monitoring for critical turbines and industrial engines. It reads frequency pulses from shaft-mounted sensors to identify runaway acceleration trends. If a threshold is crossed, the board completely bypasses the main control software to issue an immediate, low-latency machine trip command.
How does the Dual architecture function on the 5464-937 board?
The board houses two separate, identical processing loops that interface with independent speed sensor streams. This isolated dual setup allows for cross-channel diagnostic comparisons and provides the split data path required by the central processing system to execute reliable 1-out-of-2 or 2-out-of-2 hardware trip logic.
Can the 5464-937 module read signals from standard proximity probes?
Yes, the module’s front-end conditioning stage is built to process pulse telemetry from both active proximity probes and passive variable reluctance Magnetic Pickups (MPUs). The internal zero-crossing detectors adjust to recognize the unique voltage patterns delivered by either sensor family.
Does the 5464-937 handle normal governor speed regulation duties?
No, the 5464-937 functions exclusively as an emergency overspeed safety card and does not participate in regular fuel valve regulation or throttling adjustments. Normal proportional governor speed control is delegated to standard analog and digital I/O modules, leaving this card fully decoupled.
